package thread;
/**
 * 静态方法如果使用synchronized修饰，那么该方法一定具有同步效果，锁的都只能是当前类
 */
public class SyncDemo2 {
    public static void main(String[] args) {
        //Thread t1 = new Thread(new Runnable() {public void run() {Boo.doSome();}});
        //Thread t2 = new Thread(()-> {Boo.doSome();});
        Thread t1 = new Thread(Boo::doSome);
        Thread t2 = new Thread(Boo::doSome);
        t1.start();
        t2.start();
    }
}
class Boo{
    //public synchronized static void doSome(){
    public static void doSome(){
        Thread t = Thread.currentThread();
        synchronized (Boo.class) {  //Boo.class为当前类对象
            try {
                System.out.println(t.getName()+"：doSome方法开始");
                Thread.sleep(2000);
                System.out.println(t.getName()+"：doSome方法结束");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
}